All categories

2 years ago

Please explain in detail how to find the focus, vertex, and directrix of this parabola: y= -2x²

Mathematics

1 answer:

kherson [118]2 years ago

8 0

Ans-----5wer:

if you can't do it yourself you special

haha

lol

i bet

your

looking

hard

for

the

dammmm

answer

haha lol

but the answer is -4

Step-by-step explanation:

You might be interested in

Kevin has 32 golf balls. He puts the same number of golf balls into 8 bags. how many are in each bag

lozanna [386]

32 golf balls divided among 8 bags = 4 golf balls per bag

32 ÷ 8 = 4

<em>Hoped this helped!</em>

5 0

3 years ago

Read 2 more answers

Write the linear equation in standard form.<br> 12x = -9y+ 7

scZoUnD [109]

Answer:

Step-by-step explanation:

The linear equation in standard form is written in the form :

ax + by = c

Therefore : 12x = -9y + 7 in standard form will be :

12x + 9y = 7

3 0

3 years ago

Read 2 more answers

Express the following in scientific notation:<br> .000457

WARRIOR [948]

Answer:

4.57 x $10^{4}$

Step-by-step explanation: use ma th way next time and use it to see the steps

6 0

3 years ago

Read 2 more answers

If there are 1500 guests, only 1 of them brought a coupon for free admission to the carnival?

wlad13 [49]

So 1/50 brought the pass
x out 1500
1/50 = x/1500
cross multiply
1500 = 50x
divide both sides by 50
30 = x

You can expect for 30 out of the 1,500 to receive free admissions.

Hope this helps

4 0

3 years ago

Find the permeter of a quadrilateral with vertices at C (2,4), D(1,1), E(5,0), and F(3,4). Round your answer to the nearest hund

denpristay [2]

Answer:

12.76

Step-by-step explanation:

This is much easier to solve if you draw it out on a graph. The perimeter is the sum of all the sides. I used the Pythagorean theorem to find the hypotenuse.

${a}^{2} + {b}^{2} = {c}^{2} \\ c = \sqrt{ {a}^{2} + {b}^{2} }$

$dc = \sqrt{ {3}^{2} + {1}^{2} } = \sqrt{10} \\ cf = 1 \\ fe = \sqrt{ {4}^{2} + {2}^{2} } = \sqrt{20} \\ de = \sqrt{ {1}^{2} + {4}^{2} } = \sqrt{17} \\ \sqrt{10} + 1 + \sqrt{20} + \sqrt{17} = 12.76$

7 0

3 years ago